1) The sunflower is not a single flower but a cluster of small flowers arranged in a spiral pattern.

2) The world's largest desert is the Sahara Desert in Africa, covering an area of about 3.6 million square miles (9.4 million square kilometers).

3) The human body contains enough carbon to make over 9,000 pencils.

4) The world's first insurance policy was issued in 1347 in Genoa, Italy. It insured against the risk of maritime trade.